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    Smiling female science teacher leading lesson at projection screen in classroom — Stock Photo
    Smiling female science teacher leading lesson at projection screen in classroom
    Side view of a young African American male fashion student working on a design in a studio at fashion college — Stock Photo
    Side view of a young African American male fashion student working on a design in a studio at fashion college
    Junior high students using digital tablet — Stock Photo
    Junior high students using digital tablet
    Focused young woman with Down Syndrome in baking class — Stock Photo
    Focused young woman with Down Syndrome in baking class
    Portrait of a Caucasian musician teenage girl sitting by a window, looking down and playing a ukulele in a high school — Stock Photo
    Portrait of a Caucasian musician teenage girl sitting by a window, looking down and playing a ukulele in a high school
    High angle of mother helping daughter with homework while sitting at table with notebook and studying at home — Stock Photo
    High angle of mother helping daughter with homework while sitting at table with notebook and studying at home
    Side view of young female in red sundress with open textbook sitting in bookshop and looking at camera — Stock Photo
    Side view of young female in red sundress with open textbook sitting in bookshop and looking at camera
    Pretty woman sitting on floor and reading book — Stock Photo
    Pretty woman sitting on floor and reading book
    Adorable schoolgirl playing french horn in music school — Stock Photo
    Adorable schoolgirl playing french horn in music school
    High angle view of a multi-ethnic group of teenage concentrating pupils sitting at desks in class studying at school in a high school — Stock Photo
    High angle view of a multi-ethnic group of teenage concentrating pupils sitting at desks in class studying at school in a high school
    Young boy at home writing and drawing in his drawing pad — Stock Photo
    Young boy at home writing and drawing in his drawing pad
    Focused junior high boy student listening to friends in corridor — Stock Photo
    Focused junior high boy student listening to friends in corridor
    Full body of concentrated barefoot girl reading interesting book while sitting on grassy lawn in backyard against residential building in countryside — Stock Photo
    Full body of concentrated barefoot girl reading interesting book while sitting on grassy lawn in backyard against residential building in countryside
    3d rendered illustration of lateral meniscus in human skeleton. — Stock Photo
    3d rendered illustration of lateral meniscus in human skeleton.
    Crop girl lying on bed and writing in notepad — Stock Photo
    Crop girl lying on bed and writing in notepad
    Illustration of Earth, Moon and Sun with passing comet. — Stock Photo
    Illustration of Earth, Moon and Sun with passing comet.
    Female student using desktop computer while sitting at desk in classroom — Stock Photo
    Female student using desktop computer while sitting at desk in classroom
    Students writing in classroom at university — Stock Photo
    Students writing in classroom at university
    Black colleagues examining denture in laboratory — Stock Photo
    Black colleagues examining denture in laboratory
    University students performing experiment in lab — Stock Photo
    University students performing experiment in lab
    Illustration of human shoulder bones on white background. — Stock Photo
    Illustration of human shoulder bones on white background.
    Red colored probiotic rod-shaped gram-positive aerobic Bacillus clausii bacteria restoring microflora of intestine. — Stock Photo
    Red colored probiotic rod-shaped gram-positive aerobic Bacillus clausii bacteria restoring microflora of intestine.
    High angle view of students studying at table in common room — Stock Photo
    High angle view of students studying at table in common room
    Female musculature in transparent silhouette, digital illustration. — Stock Photo
    Female musculature in transparent silhouette, digital illustration.
    Growing formation of gas giant planet with concentric disc. — Stock Photo
    Growing formation of gas giant planet with concentric disc.
    Portrait confident female fashion designers working at sewing machines — Stock Photo
    Portrait confident female fashion designers working at sewing machines
    Students at computers in adult education classroom — Stock Photo
    Students at computers in adult education classroom
    Teenage girl experimenting on microscope in laboratory at university — Stock Photo
    Teenage girl experimenting on microscope in laboratory at university
    Young asian couple celebrating Hari Raya together at home — Stock Photo
    Young asian couple celebrating Hari Raya together at home
    Front view close up of a young African schoolboy sitting at his desk using a laptop computer and smiling during a lesson in a township elementary school classroom, in the background classmates are sitting at their desks working — Stock Photo
    Front view close up of a young African schoolboy sitting at his desk using a laptop computer and smiling during a lesson in a township elementary school classroom, in the background classmates are sitting at their desks working
    Swimming instructor with children using kicking boards in swimming pool. — Stock Photo
    Swimming instructor with children using kicking boards in swimming pool.
    Stylish guitarist on couch in living room — Stock Photo
    Stylish guitarist on couch in living room
    Diseased small intestine in female body transparent silhouette on black background, digital illustration. — Stock Photo
    Diseased small intestine in female body transparent silhouette on black background, digital illustration.
    Two girls lying on floor drawing — Stock Photo
    Two girls lying on floor drawing
    Girl student using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl student using microscope, conducting scientific experiment in laboratory classroom
    Young woman reading book — Stock Photo
    Young woman reading book
    Woman sat on a rock playing guitar whilst her kids dance in the sun — Stock Photo
    Woman sat on a rock playing guitar whilst her kids dance in the sun
    African american students smiling together in classroom — Stock Photo
    African american students smiling together in classroom
    Little girl opening schoolbag on stairs outdoors — Stock Photo
    Little girl opening schoolbag on stairs outdoors
    Crop man writing with pen in notebook — Stock Photo
    Crop man writing with pen in notebook
    Illustration of spleen in male body silhouette on white background. — Stock Photo
    Illustration of spleen in male body silhouette on white background.
    Medical illustration of breast tumour in human body. — Stock Photo
    Medical illustration of breast tumour in human body.
    Male anatomy showing Extensor hallucis longus muscle, computer illustration. — Stock Photo
    Male anatomy showing Extensor hallucis longus muscle, computer illustration.
    Close-up of a stack of hardback books — Stock Photo
    Close-up of a stack of hardback books
    Schoolboy using glassware and equipment in school laboratory. — Stock Photo
    Schoolboy using glassware and equipment in school laboratory.
    Digital illustration of black dwarf stellar remnant. — Stock Photo
    Digital illustration of black dwarf stellar remnant.
    Attentive university student doing a experiment in laboratory — Stock Photo
    Attentive university student doing a experiment in laboratory
    University female african student wearing protective face mask studying sitting on stairs outside on campus. New normal in college. — Stock Photo
    University female african student wearing protective face mask studying sitting on stairs outside on campus. New normal in college.
    Community college instructor helping students with paperwork in classroom — Stock Photo
    Community college instructor helping students with paperwork in classroom
    Illustration of human shoulder bones on white background. — Stock Photo
    Illustration of human shoulder bones on white background.
    Schoolboy explaining about world map in classroom at school — Stock Photo
    Schoolboy explaining about world map in classroom at school
    3d illustration of female body with red liver, computer illustration. — Stock Photo
    3d illustration of female body with red liver, computer illustration.
    Young surprised asian muslim woman using laptop indoors — Stock Photo
    Young surprised asian muslim woman using laptop indoors
    Girl reading a book in book store — Stock Photo
    Girl reading a book in book store
    A woman professor sits in her office at a desk smiling — Stock Photo
    A woman professor sits in her office at a desk smiling
    Blood stream and artery walls — Stock Photo
    Blood stream and artery walls
    Portrait close up of a young African schoolboy wearing his school uniform and schoolbag, looking straight to camera smiling, at a township elementary school with classmates sitting at desks in the background — Stock Photo
    Portrait close up of a young African schoolboy wearing his school uniform and schoolbag, looking straight to camera smiling, at a township elementary school with classmates sitting at desks in the background
    Male nervous system in body silhouette, computer illustration. — Stock Photo
    Male nervous system in body silhouette, computer illustration.
    Girl studying with her father at home — Stock Photo
    Girl studying with her father at home
    Little girl playing violin at home — Stock Photo
    Little girl playing violin at home